Focusing-hood.



H. GINDELE.

FOCUSING HOOD.

APPLICATION FILED MAY 7. 1915.

Patented Apr. 9, 19m

2 SHEETS-SHEET I- H. GINDELE.

FOCUSING HOOD.

APPLICATION FILED II1AY7|I9I5.

Patented Apn 9, 1918.

2 SHEETS-SHEET 2.

MMX/4- "UNTED STATES FATENT OFFICE.

HARRISON GINDELE, OF CINGINNAT, QTL-IIS.

FOCUSING-HOOD.

Application filed May 7, 1915.

To all whom it may concern.'

Be it known that l, l-lannisor: Gi'rznnnn, a citizen of the United States, residing at Cincinnati7 in the county of Hamilton and State of Qhio, have invented certain new and .useful improvements in Focusingl-loods; and l do hereoy declare 't ie following to be a full, cleara and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention is a focusing` hood for cameras of the typel illustrated in my Patent No. 1,115,423 granted on Get. 27, 1914.

The purpose of this invention is to provide a collapsible focusing` hood which may be readily applied and removed from hand cameras of the view type or the collapsible folding` type wherein the focusing field is of greater length than its width, whereby the hood may revolve to various focusing positions on the camera. The arrangement is such that the parts may be quiclily and easily distended for focusing` purposes, the elements thereof being actuated by resilient means. On the other hand, the elements of the attachment may be compactly folded into a small space and the whole device bodily removed from a camera by the manipulation of a single locking clip of novel design.

While a preferred embodiment of the invention is illustrated in the accompanying drawings, it is to be understood that the disclosure therein made is for the purposes of illustration only, and not as defining the limits of the invention.

Figure 1 is a side elevation of the attachment applied to a hand camera with the elements of the focusing` hood in their distended position.

2 is a rear elevation of a camera with the focusing` clip applied thereto ready to receive the attachment.

Fig. 3 is a top planl view of the view plate and attaching plate.

Fig. lis a bottom plan view of the view plate and attaching plate.

Fig. 5 is a detail view of the reflector. plate applied to the base plate.

Fig. 6 is a detail view of the resilient element which is adapted to be interposed between the base plate and reflector plate.

Fig. 7 is a front elevation of a fixed retaining clip.

Specification of Letters Patenti Fatented Apr. 9, 1918.

Serial No. 26,616.

8 is a front elevation of the retaining havingresilient locking means. Fig. 9 is a rear elevation of the retainingclip having resilient locking means,

The attachment comprises pluralityY of pivoted plates mounted upon a base plate, one of the pivoted plates having means revolubly mounted thereon to engage clips secured to a camera body and thereby permit the hood attachment to be moved to various positions on the camera with relation to the appearance of the subject upon the focusing); `glass. One of the clips is provided with locking means whereby the attachment may be quickly applied or detached from the camera body.

Referring more particularly to the construction illustrated in the drawings the attachment comprises a collapsible hood indicated at 1 which may be of any preferred form and'construction, such for example as that disclosed in my Patent No. 1,115,423, previously referred to. The device is shown provided with a base plate 2, a view plate 3, a hood mounting plate l, and side plates 5 having` a cushion element 5 adapted to engage a reflector. These plates may be of any preferred construction and material, and are so arranged that plates 8, 4: and are pivotally mounted upon the base plate so that they may be folded compactlv against said base plate. The base plate is pivoted at one end thereof to the view plate 3, as indicated at 6, which obviates the necessity of emploviiro` hinges intermediate the base plate.

The view plate 3 is provided with a large circular aperture 7 which is preferably of such diameter as to include the iield of the ground glass of the camera. Associated with the view plate 3 is an attaching,` plate 8l, which is shown provided with widened portions 9 positioned opposite to each other, each of said widened portions being` provided with notclies as at 10, and a spur 11. This plate 8 is also provided with ears 12 which are adapted to be bent over and into engagement with the opposite face of plate 3, and if desired, the widened portions 9 may be provided also with ears 13 to engage the opposite face of the plate 3, whereby the attaching plate 8 is secured to the view plate 3. By mounting the attaching plate to the circular opening 7, the attaching` plate is rotatably mounted on the view plate, or vice versa, the circular edge of the opening serving as a track upon which the plates may have rotative movement with relation to each other.

The device is adaptable for use in connection with eitherl view cameras or hand cameras of the collapsible type, but in the drawings it is shown applied to the small foldable camera. In Fig. 2 the retaining clips are shown ap )lied to a plate adapter for a tihn camera and are mounted upon blocks 1st positioned adjacent the focusing glass 15 of the bach 16. Upon the blocks 14 may be mounted the retaining clips 17 and 18. The clip 17 is illustrated more clearly in Fig. 7 a* provided with a base member 171L and may be also provided with inturi'ied ears 19, for some types of cameras. The base plate is shown provided also with a protruding element wnich may extend beyond the curred edge 21 of the base 1. This curved edge is designed to engage the curved edge of the attaching plate, in one form of the device, and may be positioned in contact with the curved edge 7 of the view plate 3 when the clip used for another form of the device wherein the portion of the view plate may be omitted. The clips 17 and 18 are designed to be positioned with relation to the widened portion of the attaching plate 8, and to be interposcc between the notches 10 and to have the flattened ends ntl thereof engage the spurs 11 of the attaching plate.

The clip 18 is provided with a plurality of 'pivoted elements Q11 which are adapted to protrude beyond the curved edge 21 of the clip. These elements may be pivoted as at 25 near a central portion of the clip, and the base member 18 may be provided with 11p-standing guiding means QG stamped up from the incinber 18, Each of the pivoted elements may be prt ided with a actuating iian'ge 27. Associated with the pivotcd elements a resilient element 28 Vin the form of a single y)liable rod. the ends ot' which are lo'oseiy mounted at Q9 on the base member 18a, while the central portion thereof is adapted Vto eci ct w' "h an end of each of the actuating i es 527. The positioning of the resilient eier-nent 28 to engage the `tlai'ig'es 27, will serve to deflect the ends 30 of the pivoted elements outwardly bevond the curved edge 21 of the member 18` v-.fhich ends 30 serre to engage the attaching plate S to lock the hood to a camera.

The base plat-c 2 is provided with a reflector indicated at 31, which is prefcrabliT pivoted at 32 to the base. plate 2. Interposed between the base plate 2 and reflectorl plat-e 31, is shown a plurality of resilient elements in the form of an arcuate leaf spring 33, having an angular portion 3st secured by a clip 35 to the base plate. The free end of the leaf spring 33 is preferably lient at an angle to the body thereof terminating in an upstanding spur 3G which is adapted to extend through an arcuate slot 37 in the reflector plate. These leaf springs Brserve to elevate the reflector plate when the attachment is moved to its distended position, and the elevation of the reflector plate 31 may be limited by suitable stop devices such as the flanges 38 and the nibs 39, whereby the plate may be positioned at. the proper angle with relation to the base plate and the view plate. for the operator to view the innige .in correct. alinement with the view opening of the focusing hood.

rEhe hood may be collapsed and folded into a very small space and entirely removed from the camera by means ofthe locking clip 18. Then it is desired to appl), the attachment'. to a camera, the clip 17 is brought into engagement with one of thc widened portions of the attaching plate, until the protruding edge 20 thereof overlaps the part at 22 of the ati aclnnent.y whereupon the pivoted elements may he retracted by means of the lianges 9.7 against the action of the spring Q8 until they pass beyond the part Q2 of the upper widened portion, whereupon the pivoted elements may be released to engage the inner face of the attaching plate. Thereafter, the plates 8, l and 5 may be moved to their extended positions and the operation of the focusing and exposing of the camera, be carried on as usual.

lThe cut-out portion of the widened part of the attaching plate is designed to receive between the members, the hinge of the hood plate, the attaching plate serving to prevent the rotation of the device when the frame is collapsed on the back of the camera.

It is obvious that. various changes may be made in the details'of construction herein presented, and the rightis reserved to make such changes and alterations as fairly fall within the scope of the appended claims.

Haring thus described my invention, what I claim as new and desire to secure by Let.- ters Patent is:

1. A foldable focusing attachment for cameras comprising a base plate having a reflector mounted thereon, and means to elevate the. refiector when the attachment is in its distended position.

2. A focusing attachment for cameras comprising a base plate, a relectorpivotally mounted thereto, and resilient n'ieans to enga ge the reflector.

3. A focusing attachment for cameras con'iprising a base plate, a reflector pivotallyv mounted thereto, and resilient means positioned between the reflector and the base plate.

4. A. focusing attachment for cameras comprising a base plate, a reflector pivotally mounted thereon and provided with an arcuate slot, and a' resilient element adapted to be interposed between the base plate and reflector and to have an arm thereot ride in said arcuate slot.

5. A collapsible traine termine' a 'focusing a tachment tor cameras inclu e plate having an aperture, and an attaching plate mounted for revoluble movement on the view plate, and means to detachably mount the attaching plate to camera, whereby the focusing attachment may be rotated bodily with relation to the camera.

(l. A `locus-ing attachment tor cameras including a view plate adapted to be secured directly to the back oi' a camera and provided with a Circular aperture, attaching plate interposed between the view plate and the camera, said attaching plate having means to engage the view plate whereby the periphery ot-the aperture may serve as a track ttor the attaching plate, and means on the camera to engage said attaching plate to permit the focusing attachment and its view plate to be rotatably moved to various positions on the camera.

7. A focusing attachment tor cameras including a view plate, an attaching plat-e to connect the view plate with the camera, said attaching plate having guides to engage the view plate to secure the attaching plate in rotatable relation thereto, and means carried by the camera to engage the attaching plate and secure said view plate on the camera.

8. In a focusing attachment for cameras, a view plate, a substantially circular attaching plate to connect the view plate with the camera, said attaching plate adapted to be positoned against one tace of the view plate and provided with means to engage the other tace of said view plate, said attaching plate being ot greater width at one portion thereof, and means to engage a wider portion of said attaching plate to secure the attachment to a camera and permit of rotative movement between the view plate and the attaching plate for the purpose ot rotating the attachment on the camera.

9. In a 'focusing attachment tor cameras, a view plate, a substantially circular attaching plate rotatably mounted on the view plate to connect a view plate with the camera, a portion of the attaching plate being ot greater width than the remaining portion, said plate being provided with notches termed in said wider portions, and means on the camera to engage the wider portions of the attaching plate and to be positioned between the notches thereof.

10. In a focusing attachment tor came ns, a substantially circular attaching plate having a central opening, a view plate having a substantially central aperture of substantially the same diameter as the opening in the attaching plate, means on the attaching plate adapted to extend through the aperture of the view plate to secure the attaching plate thereto for rotatable movement, and means to engage the attaching plate to secure the plate to the camera.

l1. ln focusing attachment iter cameras, a viev.' plate, an attaching plate removably mounted thereon, a plurality of retaining clips adapted to be secured to a camera to secure the attaching pla e and permit o' rotative movement between the attaching plate and the view plate, one ot' said clips having resilient locking means whereby the attachment may be quickly applied to and removed from the camera.

12. a focusing attachment for cameras, a, plurality ot oppositely positioned retaining clips adapted to be secured to the camera near the view opening thereof, said clips having protruding members, and a collapsible trame adapted to be engaged by the protruding members to retain the 'trame on the camera.

i8. 1n a 'focusing attachment tor cameras, va collapsible trame, an attaching plate to revolubly mount the trame on the camera, said plate having means to be engaged by clips secured to the camera, one of said clips embodying a base member having an arcuate edge, a pivoted element adapted to protrude beyond said edge, and resilient means to en! gage said pivoted member.

le. In a tocusingattachment for cameras, a collapsible frame, an attaching plate to revolubly mount the trame on the camera, said plate having means to be engaged by clips secured to the camera, one of said clips embodying a base member having an edge adapted to engage the attaching plate, an element pivoted to said base member and adapted to protrude beyond the engaged edge thereof, guiding means on the base member for the pivoted element, and resilient means to engage said pivoted element.

15. ln a 'focusing attachment for cameras, a collapsible frame, an attaching plate to revolubly mount the trame on the camera, said plate having means to be engaged by clips to secure the same to a camera, one et said clips embodying a base member, a plurality et elements pivoted thereto and adapted to entend beyond an edge thereof, and a single resilient element to engage said pivoted elements.

16. ln focusing attachment tor cameras, a collapsible trame, an attaching plate adapted to be engaged by clips secured to the camera to maintain the trame on the camera, one of said clips having a base member and a plurality of pivoted elements mounted thereon, each ot said pivoted elements having an actuating flange, and a resilient element adapted to engage said actuating flanges to maintain the pivotal elements in a predetermined position.

17. In a focusing attachment for cameras, a collapsible frame, an attaching plate adapted to be engaged by clips to secure the sain-e to a camera to maintain the frame on 'f'li 5 camera7 one of said clips having a base ineinhci' and a plurality of pivotecl elements mounted thereon, each of said pivotecl elements having an actuating fange and a single resilient element having each end thereof 10 loosely mounted on the base member and adapted to engage said actuating fiaujgjes to maintain the pivoted element in a predeterniined position.

In testimony whereof, I affix my signature, in presence of two Witnesses.

HARRISON GINDELE.

Witnesses MAX GINDELE, Jol-IN BUEHLER.

Copies at this patent may be obtained for ve cents each, by addressing the Commissioner of Patents Washington, D. C. 

